Patents Assigned to Exedy Corporation
  • Damper device
    Patent number: 10451143
    Abstract: A damper device includes a retaining plate, a plurality of first spring members and an output plate. The retaining plate has an annular shape. The plurality of first spring members are held by the retaining plate. The output plate is elastically coupled to the retaining plate through the plurality of first spring members. The retaining plate is circumferentially divided into a plurality of divided retaining plate pieces.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: October 22, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Shotaro Nakatani
  • Lock-up device for torque converter
    Patent number: 10451157
    Abstract: A lock-up device includes a clutch portion, an intermediate member, a driven plate, a damper portion and a dynamic damper device. The clutch portion is a portion into which a torque is inputted from a front cover. The intermediate member is a member into which the torque is inputted from the clutch portion. The driven plate is rotatable relatively to the intermediate member and is coupled to a turbine hub. The damper portion elastically couples the intermediate member and the driven plate in a rotational direction. The dynamic damper device is mounted to an outer peripheral part of the driven plate and attenuates fluctuation in a rotational speed.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: October 22, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Yuki Kawahara
  • Damper disc assembly
    Patent number: 10443659
    Abstract: A clutch disc assembly includes a hub flange, an output hub, an intermediate hub, a plurality of first elastic members, and a plurality of second elastic members. Power from an engine is input into the hub flange. The output hub can be coupled to an input shaft of the transmission. The intermediate hub is arranged between the hub flange and the output hub in a diameter direction such that relative rotation with the hub flange by an angle greater than or equal to a first angular range is prevented, and such that relative rotation with the output hub by an angle greater than or equal to a second angular range is prevented. The plurality of first elastic members couple the hub flange and the intermediate hub elastically in a rotation direction. The plurality of second elastic members couple the intermediate hub and the output hub elastically in the rotation direction.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: October 15, 2019
    Assignee: EXEDY CORPORATION
    Inventors: Hirokazu Wakabayashi, Yoshitaka Kubota, Kazuki Hashimoto
  • Dynamic vibration absorbing device
    Patent number: 10436283
    Abstract: A dynamic damper device for absorbing a torsional vibration includes a rotary part, an inertia part, and an elastic part. The rotary part is a part to which the torsional vibration is transmitted, and is rotatable about a rotational center. The inertia part is provided on the rotary part so as to be movable in a radial direction with respect to the rotary part by a centrifugal force and be movable in a circumferential direction with respect to the rotary part by the torsional vibration. The elastic part couples the rotary part and the inertia part.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 8, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Hiroshi Uehara
  • Dynamic vibration absorbing device and fluid coupling
    Patent number: 10422408
    Abstract: A dynamic vibration absorbing device inhibits fluctuations in rotational velocity of a rotary member. The dynamic vibration absorbing device includes a tubular member having an annular shape, the tubular member including a slit extending in a circumferential direction. The dynamic vibration absorbing device also includes at least one elastic member disposed inside the tubular member, the at least one elastic member disposed to be non-rotatable relatively to the tubular member. In addition, the dynamic vibration absorbing device includes a support member including an attachment part, a support part and a coupling part, the attachment part attachable to the rotary member, the support part disposed inside the tubular member, the support part disposed to be rotatable relatively to the tubular member, the coupling part coupling the attachment part and the support part through the slit.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 24, 2019
    Assignee: EXEDY CORPORATION
    Inventors: Yoshihiro Kojima, Kazushi Sone, Takumi Imada
  • CLUTCH DEVICE
    Publication number: 20190285123
    Abstract: A clutch device is disclosed. The present device includes a driven plate having an annular shape and a clutch center. The driven plate includes a plurality of engaging recesses. The clutch center is rotatable about an rotational axis and makes the driven plate movable in an axial direction and non-rotatable relatively thereto when the driven plate is assembled thereto. Additionally, the clutch center includes a body having a cylindrical shape, one or more first teeth and one or more protruding teeth as a guide portion. The one or more first teeth are provided on the body and are configured to engage with the engaging recesses of the driven plate. The one or more protruding teeth function as a slide guide when the driven plate is slid onto the clutch center so as to be assembled thereto.
    Type: Application
    Filed: February 15, 2019
    Publication date: September 19, 2019
    Applicant: EXEDY Corporation
    Inventors: Yoshio IMANISHI, Hidenori KITAZAWA, Koji YONEYAMA
  • POWER TRANSMISSION DEVICE
    Publication number: 20190285121
    Abstract: A power transmission device is disclosed. The power transmission device includes an input rotary member, an intermediate rotary member, an output rotary member, a friction engaging part and a load adjusting mechanism. A torque is inputted to the input rotary member. The torque is inputted from the input rotary member to the intermediate rotary member. The torque is outputted from the output rotary member. The friction engaging part is engaged by friction with a friction force depending on a load applied thereto. The friction engaging part is configured to transmit the torque between the intermediate rotary member and the output rotary member. The load adjusting mechanism is configured to adjust the load applied to the friction engaging part in accordance with the torque inputted to the input rotary member.
    Type: Application
    Filed: February 22, 2019
    Publication date: September 19, 2019
    Applicant: EXEDY Corporation
    Inventors: Yuki KAWAHARA, Hitoshi KATSURA, Katsuaki WAKI
  • Power transmission device
    Patent number: 10415668
    Abstract: A lock-up device includes an input-side rotary member, an output-side rotary member, an outer peripheral side torsion spring, a restriction member and a float member. The restriction member is attached to the output-side rotary member. The restriction member includes a first restriction part. The first restriction part is disposed at an interval from the output-side rotary member in an axial direction. The float member is rotatable relatively to the input-side rotary member and the output-side rotary member. An inner peripheral end of the float member is disposed between the output-side rotary member and the first restriction part in the axial direction.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: September 17, 2019
    Assignee: EXEDY CORPORATION
    Inventors: Tomohiro Wada, Yuki Kawahara
  • Lock-up device for torque converter
    Patent number: 10408322
    Abstract: A lock-up device includes a clutch disc, a piston, a temperature detection member and a gap adjustment mechanism. The clutch disc is disposed between a front cover and a turbine. The piston is disposed in opposition to the front cover through the clutch disc so as to be movable in an axial direction, and presses the clutch disc toward the front cover. The deformation amount of the temperature detection member is adjusted in accordance with surrounding temperatures. In accordance with the deformation amount, the gap adjustment mechanism adjusts a gap between the front cover and the piston to be a first gap at a first temperature. Further, in accordance the deformation amount, the gap adjustment mechanism adjusts the gap between the front cover and the piston to be a second gap narrower than the first gap at a second temperature higher than the first temperature.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: September 10, 2019
    Assignee: EXEDY CORPORATION
    Inventors: Kazuhito Maeda, Keiichi Yasuda
  • Lock-up device for torque converter
    Patent number: 10408321
    Abstract: A lock-up device includes a clutch portion, a piston, a sleeve and an oil chamber plate. The clutch portion is disposed between the front cover and a turbine. The piston is movable in an axial direction. The piston turns the clutch portion into a torque transmission state. The sleeve is fixed to a front cover and includes an outer peripheral surface and a protrusion. The outer peripheral surface supports an inner peripheral surface of the piston such that the piston is movable in the axial direction. The protrusion has an annular shape and protrudes radially outward from the outer peripheral surface. The oil chamber plate has a disc shape and is joined to a piston-side lateral surface of the protrusion of the sleeve. The oil chamber plate defines an oil chamber together with the piston therebetween. The oil chamber is supplied a hydraulic oil for activating the piston.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: September 10, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Satoru Matsuda
  • Fluid coupling
    Patent number: 10400832
    Abstract: A torque converter includes a front cover, an impeller, an output shaft member, a turbine and a clutch. The turbine includes a turbine shell, a turbine blade, a coupling portion and a piston portion. The turbine shell is supported by the output shaft member. Additionally, the turbine shell slides on the output shaft member in an axial direction. The turbine blade is attached to the turbine shell. The coupling portion extends from the turbine shell toward the front cover. The piston portion extends from the coupling portion in a radial direction. The clutch is disposed between the piston portion and the front cover.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: September 3, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Keiji Sato
  • VIBRATION REDUCTION DEVICE
    Publication number: 20190257383
    Abstract: A vibration reduction device for reducing a torsional vibration from an engine includes an input rotary part, an output rotary part, a damper part, a dynamic vibration absorbing device, and a torque limiting part. Torsional vibration is input to the input rotary part. The output rotary part is disposed to be relatively rotatable with respect to the input rotary part. The damper part is disposed between the input rotary part and the output rotary part and attenuates the torsional vibration input to the input rotary part. The dynamic vibration absorbing device absorbs the torsional vibration output from the damper part. The torque limiting part limits transmission of torque between the input rotary part and the output rotary part.
    Type: Application
    Filed: July 27, 2017
    Publication date: August 22, 2019
    Applicant: EXEDY Corporation
    Inventors: Yuki KAWAHARA, Yusuke TOMITA, Yusuke OKAMOTO
  • TORQUE FLUCTUATION INHIBITING DEVICE, TORQUE CONVERTER AND POWER TRANSMISSION DEVICE
    Publication number: 20190226553
    Abstract: A torque fluctuation inhibiting device for inhibiting torque fluctuations in a rotor to which a torque is inputted is disclosed. The torque fluctuation inhibiting device comprises a mass body, a plurality of drag mechanisms, and a restriction mechanism. The mass body is disposed to be rotatable with the rotor and to be rotatable relative to the rotor. Each of the plurality of drag mechanisms is for generating a circumferential force when a relative displacement is produced between the rotor and the mass body in a rotational direction. The circumferential force is directed to reduce the relative displacement. The restriction mechanism is for restricting actuation of one or more of the plurality of drag mechanisms.
    Type: Application
    Filed: December 12, 2018
    Publication date: July 25, 2019
    Applicant: EXEDY Corporation
    Inventor: Yusuke TOMITA
  • Damper device
    Patent number: 10352396
    Abstract: A damper device includes a first rotary member, a second rotary member, a plurality of coil springs, an intermediate member and a slide spring. The first rotary member is a member into which a power of an engine is inputted. The second rotary member is disposed to be rotatable with respect to the first rotary member. The plurality of coil springs are configured to be compressed between the first rotary member and the second rotary member. The intermediate member is configured to engage the plurality of coil springs and couple the plurality of coil springs together. The slide spring is disposed axially between the first rotary member and the intermediate member. The slide spring is configured to slide against the first rotary member. The slide spring is configured not to slide with respect to the intermediate member.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: July 16, 2019
    Assignee: EXEDY Corporation
    Inventors: Hiroshi Uehara, Yoshinari Yoshimura, Takeshi Senoue
  • Lock-up device for torque converter
    Patent number: 10337596
    Abstract: A lock-up device includes a clutch part, an input plate, an outer peripheral side damper part, an output plate, an inner peripheral side damper part, and an intermediate member. The outer peripheral side damper part includes at least two outer peripheral side springs. The outer peripheral side springs are disposed in a circumferential alignment, act in series, and take circular-arc shapes when in a free state. The inner peripheral side damper part includes at least two inner peripheral side springs. The inner peripheral side springs are disposed in a circumferential alignment on an inner peripheral side of the outer peripheral side damper part, and act in series. The intermediate member is rotatable relatively to the input plate and the output plate, and makes the outer peripheral side damper part and the inner peripheral side damper part act in series.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: July 2, 2019
    Assignee: EXEDY CORPORATION
    Inventors: Yukiyoshi Takada, Satoshi Osaki
  • Wheel stator assembly
    Patent number: 10309508
    Abstract: A wheel stator assembly includes a one-way clutch, a stator and a thrust plate. The one-way clutch includes an inner race and an outer race disposed on an outer peripheral side of the inner race. The stator includes a stator carrier and a plurality of stator blades. The stator blades are mounted on an outer peripheral side of the stator carrier. The stator carrier is supported by an outer peripheral part of the outer race. The stator carrier includes an inner peripheral extended part. The inner peripheral extended part extends to an inner peripheral side and is opposed to a lateral surface of the inner race. The thrust plate is disposed axially between the inner race and the inner peripheral extended part of the stator carrier and can contact the lateral surface of the inner race. The thrust plate is rotatable in synchronization with the stator carrier.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 4, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Satoru Matsuda
  • Clutch device
    Patent number: 10302149
    Abstract: A clutch center includes a pressure receiving part. A pressure plate includes a pressure applying part. A clutch part is disposed between the pressure receiving part and the pressure applying part. A cam mechanism includes a first cam part and a second cam part. The first cam part and the second cam part are offset from the clutch center and the pressure plate in an axial direction. The first cam part includes a first slope. The second cam part includes a second slope opposed to the first slope. When the first cam part is rotated relatively to the second cam part in a first direction making up a circumferential direction, the first and second slopes are pressed against each other and separate from each other. The pressure applying part moves toward the pressure receiving part as the first cam part and the second cam part separate.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 28, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Yoshio Imanishi
  • Fluid coupling
    Patent number: 10295035
    Abstract: A torque converter includes a front cover, an output shaft member, a piston, a clutch, an impeller, and a turbine. The piston is supported by the output shaft member. The piston slides on the output shaft member in an axial direction. The piston extends in a radial direction. The clutch is disposed between the front cover and the piston. The impeller includes an impeller shell and an impeller blade. The impeller shell is fixed to the front cover. The impeller blade is attached to the impeller shell. The turbine includes a turbine shell, a turbine blade and a connecting portion. The turbine shell is disposed in opposition to the impeller. The turbine blade is attached to the turbine shell. The connecting portion connects the piston and the turbine shell so as to make the piston and the turbine shell unitarily rotatable.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: May 21, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Keiji Sato
  • Clutch device
    Patent number: 10294998
    Abstract: A clutch device includes a first rotary member, a second rotary member, a clutch part, a support member, and a cam mechanism. The cam mechanism separates the support member and the second rotary member away from each other in the axial direction when the support member and the second rotary member are rotated relatively to each other. The cam mechanism includes a first cam surface, a second cam surface, a third cam surface and a fourth cam surface. The first and second cam surfaces are included in the support member. The third and fourth cam surfaces are included in the second rotary member. The first and second cam surfaces tilt to face axially inside and face oppositely to each other in a circumferential direction. The third cam surface is opposed to the first cam surface. The fourth cam surface is opposed to the second cam surface.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 21, 2019
    Assignee: EXEDY CORPORATION
    Inventor: Yoshio Imanishi
  • Friction material for clutch
    Patent number: 10288138
    Abstract: A clutch friction material includes a base material containing a rubber material and a thermosetting resin. The clutch friction material also includes an intermediate layer disposed on the base material. The intermediate layer includes either a glassy carbon structure or a graphite structure formed as a result of thermal curing of the thermosetting resin contained in the base material. In addition, the clutch friction material includes an outermost surface layer disposed on the intermediate layer. The outermost surface layer contains a pyrolysate produced as a result of pyrolysis of rubber and resin components contained in the base material.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 14, 2019
    Assignee: EXEDY CORPORATION
    Inventors: Takeshi Yamada, Nobuyasu Watanabe, Hiroki Mori, Takashi Takehara, Shinya Unigame, Kazushige Yoshida, Go Yanagisawa, Masashi Hatano, Tatsuya Osone